Table I.

Primers and sequences used in reverse transcription-quantitative polymerase chain reaction.

Name	Base sequence (5′-3′)
E-cadherin
Forward	5′-AGGCCAAGCAGCAGTACATT-3′
Reverse	5′- ATTCACATCCAGCACATCCA-3′
N-cadherin
Forward	5′-CCATCAAGCCTGTGGGAATC-3′
Reverse	5′-GCAGATCGGACCGGATACTG-3′
GAPDH
Forward	5′-GCACCGTCAAGGCTGAGAAC-3′
Reverse	5′-TGGTGAAGACGCCAGTGGA-3′

N, neural; E, epithelial.